CN105234551A - Sealing device and sealing method for ends of thin-walled stainless steel pipe - Google Patents
Sealing device and sealing method for ends of thin-walled stainless steel pipe Download PDFInfo
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- CN105234551A CN105234551A CN201510552080.6A CN201510552080A CN105234551A CN 105234551 A CN105234551 A CN 105234551A CN 201510552080 A CN201510552080 A CN 201510552080A CN 105234551 A CN105234551 A CN 105234551A
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- stainless steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a sealing device and sealing method for the ends of a thin-walled stainless steel pipe. The device comprises a three-jaw chuck used for clamping an aluminum alloy rod and a roller carrier set used for supporting the aluminum alloy rod. The aluminum alloy rod is inserted into a thin-walled stainless steel pipe. The thin-walled stainless steel pipe is clamped in a rotary cylinder through a thin-walled clamp. The rotary cylinder is connected with a fixed cylinder through a bearing. The fixed cylinder is installed on a movable device through a support. A plurality of circles of racks are arranged on the outer wall of the rotary cylinder. The racks are engaged with a gear. The gear is installed on a motor through a gear shaft. The motor is fixed to the movable device. A telescopic rotary arm is fixedly connected to the outer wall of the rotary cylinder. A stirring head is installed at the end of the rotary arm. According to the sealing device for the thin-walled stainless steel pipe ends, the thin-walled stainless steel pipe is expanded by heating the thin-walled stainless steel pipe through oil path, the aluminum alloy rod with the temperature lower than the indoor temperature is inserted into the thin-walled stainless steel pipe, no internal stretching device is used, and the sealing device has universality in welding thin-walled pipe fittings made of other materials.
Description
Technical field
The present invention relates to a kind of sealing device and encapsulating method of thin-wall stainless steel pipe end, belong to metal material processing field.
Background technology
Friction stir welding (FrictionStirWelding is called for short FSW) is that Britain's institute of welding (TheWeldingInstitute) is in the patent solder technology of invention in 1991.Friction stir welding, except having the advantage of conventional friction welding technology, can also carry out the connection of multiple joint form and different welding position.Agitating friction welding technology has been succeeded application in Aeronautics and Astronautics, boats and ships, train, electric power and heavy weapons etc., but currently in the welding of light-wall pipe, still there are some problems.
When tube wall becomes hour, welding difficulty becomes large.Patent (201410729971.X) proposes employing gas tungsten arc welding, solves the connectivity problem of small-diameter, thin-walled stainless steel pipe; Patent (201010524846.7) proposes the welding method of a kind of minor-diameter nozzle and aluminium alloy thin-walled structure, welds with aluminium alloy thin-walled structure junction minor-diameter nozzle, is equally also to adopt arc welding method to weld.In fact, adopt arc welding method to carry out welding (as ac tungsten inert gases welding) when welding aluminium alloy, very easily cause crackle and pore, especially when thin-wall pipe welds, welding deformation is even more serious, and percent defective even reaches 70%.In order to improve welding quality, patent (201310096100.4) proposes a kind of production method of heat pump minor-caliber ultra-thin-wall high-frequency welding stainless steel tube, but welding current is higher, reach 230 ~ 235A, the electrical efficiency low (being about about 50%) of high-frequency welding simultaneously, voltage and current is too high, poor stability.The people such as Zheng Ying (patent No.: 201510118191.6,201510118211.X) propose a kind of production method of aluminium alloy super-large diameter thin wall overpressure resistant pipe, and the method for being welded by agitating friction carries out longitudinal seam welding.But do not relate to the end face sealing technique of stainless steel tube.The people such as Li Hui (come from: AWJT2005, October20-23, Dalian, China, A42-A47) propose a kind of friction stir welding method of thin-wall aluminum alloy cylindrical shell weld seam, but in welding process, weldment is indeformable to need to adopt the equipment of inner tensioner to ensure, also need to hold out against end cap from both sides, and the method proposed is applicable to the situation that aluminium alloy cylindrical body end face has opening simultaneously, namely, when end face requires thoroughly to close, the method proposed cannot be finished the work.Also enclosure method is not retrieved at thin-wall stainless steel.
Visible, when thin metallic tubd (wall thickness is less than 1mm) needs end face to close welding, be faced with a welding difficult problem, be embodied in: the requirement that thin-wall metal end surfaces is closed, cause inner swelling device to be difficult to put into thin-wall pipe inside, thus cause agitating friction to weld unsuccessfully owing to lacking inner support.Therefore propose a kind of effectively thin-wall stainless steel pipe end sealing method and device to have important practical significance.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention proposes a kind of sealing device and encapsulating method of thin-wall stainless steel pipe end, inner swelling device is not used to be connected with aluminium alloy bars by thin-wall stainless steel, by Stirring head welding thin-wall stainless steel and aluminium alloy bars, overcome the shortcoming of thin-wall stainless steel torsional property difference.
Technical scheme: for solving the problems of the technologies described above, the sealing device of a kind of thin-wall stainless steel pipe end of the present invention, comprise the scroll chuck of clamping aluminium alloy bars, support the turning rolls group of aluminium alloy bars, described aluminium alloy bars is inserted in thin-wall stainless steel, thin-wall stainless steel passes through thin-walled holder in rotating cylinder, rotating cylinder is connected with stationary magazine creel by bearing, stationary magazine creel by support installing on the mobile device, the outer wall of rotating cylinder is provided with some circle tooth bars, rack and pinion engages, gear is arranged on motor by gear shaft, motor is fixing on the mobile device, mobile device is installed on the table, described rotating cylinder outer wall is fixedly connected with telescopic turning arm, the end of turning arm is provided with stirring-head, below stirring-head, mixing needle is installed, aluminium alloy bars one end be diameter be less than aluminium alloy bars for axle body, axle body and aluminium alloy bars form the shaft shoulder, axle body is inserted in thin-wall stainless steel, axle body and thin-wall stainless steel are interference fit, pass through friction stir welding, thin-wall stainless steel is formed H type weld seam, thus realize the soldering and sealing of thin-wall stainless steel pipe end, shown mobile device comprises servomotor, straight line slide unit and stainless steel tube, servomotor is connected with sliding axle, sliding axle is threaded with straight line slide unit, the both sides of straight line slide unit are provided with line slideway, line slideway is provided with rail slider, and stainless steel tube is fixedly connected with rail slider with straight line slide unit, and support and motor are all positioned on stainless steel tube, servomotor drives straight line slide unit to move, thus drives stainless steel tube to move.
As preferably, the magnitude of interference of described axle body and thin-wall stainless steel is δ, δ=(t-t
0) × α × l-δ
0, wherein, δ
0the temperature of thin-wall stainless steel when=(1 ~ 2) * δ, t are assembling, t
0for the environment temperature before heating, when α is heating, workpiece is radially expanded coefficient, the internal diameter of l--thin-wall stainless steel.
As preferably, the length of described axle body is not less than 3.5 times of stirring-head diameter, and stirring-head is provided with mixing needle, and mixing needle length is not less than the thin-wall stainless steel thickness of pipe wall of 1.5 times.
As preferably, described H type weld seam comprises first girth joint and second girth joint, and first girth joint completes the overlap welding of stainless steel tube and the shaft shoulder, and second girth joint completes the butt welding of stainless steel tube and aluminium alloy bars.
An encapsulating method for the sealing device of above-mentioned thin-wall stainless steel pipe end, comprises the following steps:
(1) δ=(t-t according to actual needs, is utilized
0) × α × l-δ
0determine the diameter of magnitude of interference δ and axle body, choose suitable axle body length, process satisfactory aluminium alloy bars, select the length of suitable mixing needle according to thin-wall stainless steel thickness of pipe wall;
(2) thin-wall stainless steel oil bath is heated to 100 DEG C, then assembling thin-wall stainless steel and aluminium alloy bars are air-dry after also cooling fast rapidly;
(3) aluminium alloy bars one end in the workpiece assembled is arranged on scroll chuck, other end thin-wall stainless steel is fixed by thin-walled fixture, start servomotor, reaching adjustment stirring-head by adjustment stainless steel tube makes it aim at the object of the axis of thin-wall stainless steel and aluminium alloy bars vertically downward, and the mixing needle distance axis at one's side distance of edge is greater than and equals D, wherein D is the diameter of stirring-head, and stirring-head is positioned at directly over axle body end;
(4) first stirring-head is started, and make it slowly be pressed into welded region to carry out preheating, after preheating terminates, starter motor driven rotary cylinder rotates, thus drives stirring-head to rotate, after stirring-head stirs one week, motor quits work, and telescopic arm extends, and mixing needle continues keep high-speed rotation and weld a segment distance along aluminium alloy bars axis to aluminium alloy bars side level, until stainless steel tube and aluminium alloy bars joint stop mobile, prepare the welding starting butt girth welding seam;
(5) again starter motor and direction of rotation with consistent before, after rotating cylinder rotates a circle, the welding of butt girth welding seam completes, now stop motor, stirring-head continues to keep high-speed rotation and after moving horizontally a bit of distance to aluminium alloy bars side, slowly promote stirring-head, until mixing needle stops the rotation of stirring-head again after departing from weld seam completely, the welding of this side pipe end terminates;
(6) according to step (1) and (2), process identical axle body, assemble thin-wall stainless steel and aluminium alloy bars;
(7) again the thin-wall stainless steel assembled and aluminium alloy bars are repeated step (3) to (5), the soldering and sealing at thin-wall stainless steel two ends can be completed.
Beneficial effect: the sealing device of thin-wall stainless steel pipe end of the present invention, utilize and thin-wall stainless steel tube swelling is made to thin-wall stainless steel oil bath heating, aluminium alloy bars lower than room temperature is inserted in thin-wall stainless steel, do not use inner swelling device, in the welding of other materials thin-wall pipe, there is versatility; Employing H type weld seam is disposable completes welding, ensures again the air-tightness of quality and the stainless steel tube welded while ensure that the precision of welding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is H type weld seam front view;
Fig. 3 is H type weld seam A-A schematic cross-section;
Fig. 4 is welding point cross-sectional view;
Fig. 5 is the structural representation of mobile device in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figures 1 to 5, the sealing device of a kind of thin-wall stainless steel 1 end of the present invention, comprise the scroll chuck 17 of clamping aluminium alloy bars 5, support the turning rolls group 7 of aluminium alloy bars 5, described aluminium alloy bars 5 is inserted in thin-wall stainless steel 1, thin-wall stainless steel 1 is clamped in rotating cylinder 18 by thin-walled fixture 9, rotating cylinder 18 is connected with stationary magazine creel 12 by bearing 11, stationary magazine creel 12 is installed on the mobile device by support 13, the outer wall of rotating cylinder 18 is provided with some circle tooth bars, rack and pinion 16 engages, gear 16 is arranged on motor 15 by gear 16 axle, motor 15 is fixing on the mobile device, mobile device is arranged on workbench 14, described rotating cylinder 18 outer wall is fixedly connected with telescopic turning arm 8, the end of turning arm 8 is provided with stirring-head 3, below stirring-head 3, mixing needle is installed, aluminium alloy bars 5 one end be diameter be less than aluminium alloy bars 5 for axle body 10, axle body 10 and aluminium alloy bars 5 form the shaft shoulder, axle body 10 is inserted in thin-wall stainless steel 1, axle body 10 and thin-wall stainless steel 1 are interference fit, pass through friction stir welding, thin-wall stainless steel 1 is formed H type weld seam, thus realize the soldering and sealing of thin-wall stainless steel 1 end, shown mobile device comprises servomotor 19, straight line slide unit 20 and stainless steel tube 22, servomotor 19 is connected with sliding axle, sliding axle is threaded with straight line slide unit 20, the both sides of straight line slide unit 20 are provided with line slideway 21, line slideway 21 is provided with rail slider, and stainless steel tube 22 is fixedly connected with rail slider with straight line slide unit 20, and support 13 and motor 15 are all positioned on stainless steel tube 22, servomotor 19 drives straight line slide unit 20 to move, thus drives stainless steel tube 22 to move.
In the present invention, described axle body 10 is δ, δ=(t-t with the magnitude of interference of thin-wall stainless steel
0) × α × l-δ
0, wherein, δ
0the temperature of thin-wall stainless steel when=(1 ~ 2) * δ, t are assembling, t
0for the environment temperature before heating, when α is heating, workpiece is radially expanded coefficient, the internal diameter of l--thin-wall stainless steel.The length of described axle body 10 is not less than 3.5 times of stirring-head 3 diameter, and stirring-head 3 is provided with mixing needle, and mixing needle length is not less than the thin-wall stainless steel thickness of pipe wall of 1.5 times.
In the present invention, described H type weld seam 4 comprises first girth joint and second girth joint, and first girth joint completes the overlap welding of stainless steel tube and the shaft shoulder, and second girth joint completes the butt welding of stainless steel tube and aluminium alloy bars 5.The first girth joint 4-1 of H type weld seam 4 completes the overlap welding of stainless steel tube 1 and the shaft shoulder, the second girth joint 4-3 of H type weld seam 4 completes the butt welding of stainless steel tube 1 and aluminium alloy bars, and in H type weld seam, first girth joint 4-1 to second girth joint 4-3 is transition weld seam 4-2.Turning rolls group 7 can regulate the distance between roller, to adapt to the pipe fitting of different-diameter.
An encapsulating method for the sealing device of above-mentioned thin-wall stainless steel 1 end, comprises the following steps:
(1) δ=(t-t according to actual needs, is utilized
0) × α × l-δ
0determine the diameter of magnitude of interference δ and axle body 10, choose suitable axle body 10 length, process satisfactory aluminium alloy bars 5, select the length of suitable mixing needle according to thin-wall stainless steel thickness of pipe wall;
(2) thin-wall stainless steel oil bath is heated to 100 DEG C, then assembling thin-wall stainless steel and aluminium alloy bars 5 are air-dry after also cooling fast rapidly;
(3) aluminium alloy bars 5 one end in the workpiece assembled is arranged on scroll chuck 17, other end thin-wall stainless steel is fixed by thin-walled fixture 9, start servomotor 19, reaching adjustment stirring-head 3 by adjustment stainless steel tube 22 makes it aim at the object of the axis of thin-wall stainless steel and aluminium alloy bars 5 vertically downward, and the distance at mixing needle distance axle body 10 edge is greater than and equals D, wherein D is the diameter of stirring-head 3, and stirring-head 3 is positioned at directly over axle body 10 end;
(4) first stirring-head 3 is started, and make it slowly be pressed into welded region to carry out preheating, after preheating terminates, starter motor 15 driven rotary cylinder 18 rotates, thus drives stirring-head 3 to rotate, after stirring-head 3 stirs one week, motor 15 quits work, and telescopic arm extends, and mixing needle continues keep high-speed rotation and weld a segment distance along aluminium alloy bars 5 axis to aluminium alloy bars 5 side level, until stainless steel tube and aluminium alloy bars 5 joint stop mobile, prepare the welding starting butt girth welding seam;
(5) again starter motor 15 and direction of rotation with consistent before, after rotating cylinder 18 rotates a circle, the welding of butt girth welding seam completes, now stop motor 15, stirring-head 3 continues to keep high-speed rotation and after moving horizontally a bit of distance to aluminium alloy bars 5 side, slowly promote stirring-head 3, until mixing needle stops the rotation of stirring-head 3 again after departing from weld seam completely, the welding of this side pipe end terminates;
(6) according to step (1) and (2), process identical axle body 10, assemble thin-wall stainless steel and aluminium alloy bars 5;
(7) again the thin-wall stainless steel assembled and aluminium alloy bars 5 are repeated step (3) to (5), the soldering and sealing at thin-wall stainless steel two ends can be completed.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the sealing device of a thin-wall stainless steel pipe end, it is characterized in that: the scroll chuck comprising clamping aluminium alloy bars, support the turning rolls group of aluminium alloy bars, described aluminium alloy bars is inserted in thin-wall stainless steel, thin-wall stainless steel passes through thin-walled holder in rotating cylinder, rotating cylinder is connected with stationary magazine creel by bearing, stationary magazine creel by support installing on the mobile device, the outer wall of rotating cylinder is provided with some circle tooth bars, rack and pinion engages, gear is arranged on motor by gear shaft, motor is fixing on the mobile device, mobile device is installed on the table, described rotating cylinder outer wall is fixedly connected with telescopic turning arm, the end of turning arm is provided with stirring-head, below stirring-head, mixing needle is installed, aluminium alloy bars one end be diameter be less than aluminium alloy bars for axle body, axle body and aluminium alloy bars form the shaft shoulder, axle body is inserted in thin-wall stainless steel, axle body and thin-wall stainless steel are interference fit, pass through friction stir welding, thin-wall stainless steel is formed H type weld seam, thus realize the soldering and sealing of thin-wall stainless steel pipe end, shown mobile device comprises servomotor, straight line slide unit and stainless steel tube, servomotor is connected with sliding axle, sliding axle is threaded with straight line slide unit, the both sides of straight line slide unit are provided with line slideway, line slideway is provided with rail slider, and stainless steel tube is fixedly connected with rail slider with straight line slide unit, and support and motor are all positioned on stainless steel tube, servomotor drives straight line slide unit to move, thus drives stainless steel tube to move.
2. the sealing device of thin-wall stainless steel pipe end according to claim 1, is characterized in that: the magnitude of interference of described axle body and thin-wall stainless steel is δ, δ=(t-t
0) × α × l-δ
0, wherein, δ
0the temperature of thin-wall stainless steel when=(1 ~ 2) * δ, t are assembling, t
0for the environment temperature before heating, when α is heating, workpiece is radially expanded coefficient, the internal diameter of l--thin-wall stainless steel.
3. the sealing device of thin-wall stainless steel pipe end according to claim 2, is characterized in that: the length of described axle body is not less than 3.5 times of stirring-head diameter, and stirring-head is provided with mixing needle, and mixing needle length is not less than the thin-wall stainless steel thickness of pipe wall of 1.5 times.
4. the sealing device of thin-wall stainless steel pipe end according to claim 3, it is characterized in that: described H type weld seam comprises first girth joint and second girth joint, first girth joint completes the overlap welding of stainless steel tube and the shaft shoulder, and second girth joint completes the butt welding of stainless steel tube and aluminium alloy bars.
5. an encapsulating method for the sealing device of thin-wall stainless steel pipe end as claimed in claim 4, is characterized in that, comprise the following steps:
(1) δ=(t-t according to actual needs, is utilized
0) × α × l-δ
0determine the diameter of magnitude of interference δ and axle body, choose suitable axle body length, process satisfactory aluminium alloy bars, select the length of suitable mixing needle according to thin-wall stainless steel thickness of pipe wall;
(2) thin-wall stainless steel oil bath is heated to 100 DEG C, then assembling thin-wall stainless steel and aluminium alloy bars are air-dry after also cooling fast rapidly;
(3) aluminium alloy bars one end in the workpiece assembled is arranged on scroll chuck, other end thin-wall stainless steel is fixed by thin-walled fixture, start servomotor, reaching adjustment stirring-head by adjustment stainless steel tube makes it aim at the object of the axis of thin-wall stainless steel and aluminium alloy bars vertically downward, and the mixing needle distance axis at one's side distance of edge is greater than and equals D, wherein D is the diameter of stirring-head, and stirring-head is positioned at directly over axle body end;
(4) first stirring-head is started, and make it slowly be pressed into welded region to carry out preheating, after preheating terminates, starter motor driven rotary cylinder rotates, thus drives stirring-head to rotate, after stirring-head stirs one week, motor quits work, and telescopic arm extends, and mixing needle continues keep high-speed rotation and weld a segment distance along aluminium alloy bars axis to aluminium alloy bars side level, until stainless steel tube and aluminium alloy bars joint stop mobile, prepare the welding starting butt girth welding seam;
(5) again starter motor and direction of rotation with consistent before, after rotating cylinder rotates a circle, the welding of butt girth welding seam completes, now stop motor, stirring-head continues to keep high-speed rotation and after moving horizontally a bit of distance to aluminium alloy bars side, slowly promote stirring-head, until mixing needle stops the rotation of stirring-head again after departing from weld seam completely, the welding of this side pipe end terminates;
(6) according to step (1) and (2), process identical axle body, assemble thin-wall stainless steel and aluminium alloy bars;
(7) again the thin-wall stainless steel assembled and aluminium alloy bars are repeated step (3) to (5), the soldering and sealing at thin-wall stainless steel two ends can be completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510552080.6A CN105234551A (en) | 2015-09-01 | 2015-09-01 | Sealing device and sealing method for ends of thin-walled stainless steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510552080.6A CN105234551A (en) | 2015-09-01 | 2015-09-01 | Sealing device and sealing method for ends of thin-walled stainless steel pipe |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825910A (en) * | 2017-03-29 | 2017-06-13 | 沧州天瑞星光热技术有限公司 | The agitating friction welder and welding method of welded stainless steel pipe circular weld |
| CN107289895A (en) * | 2017-07-25 | 2017-10-24 | 爱佩仪中测（成都）精密仪器有限公司 | For the chalker to metal tube outer circumferential walls |
| CN108951315A (en) * | 2017-06-14 | 2018-12-07 | 深圳市朗驰欣创科技股份有限公司 | Orbit connection device and rail assembly |
| CN111604345A (en) * | 2020-07-09 | 2020-09-01 | 谢丐养 | Reusable protective device and method for production and processing of combined type steel bars |
| CN113997009A (en) * | 2021-10-26 | 2022-02-01 | 宣城市雍基超镜面精密机械制造有限公司 | Forming method of light thin-wall aluminum guide roller |
| CN114310242A (en) * | 2021-12-23 | 2022-04-12 | 北京城建集团有限责任公司 | Thin-wall stainless steel pipe sealing installation equipment |
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| JP2012139721A (en) * | 2011-01-06 | 2012-07-26 | Calsonic Kansei Corp | Friction stir bonding method |
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| US6259052B1 (en) * | 1998-12-18 | 2001-07-10 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Orbital friction stir weld system |
| JP2003112272A (en) * | 2001-09-28 | 2003-04-15 | Denso Corp | Friction stir welding method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825910A (en) * | 2017-03-29 | 2017-06-13 | 沧州天瑞星光热技术有限公司 | The agitating friction welder and welding method of welded stainless steel pipe circular weld |
| CN108951315A (en) * | 2017-06-14 | 2018-12-07 | 深圳市朗驰欣创科技股份有限公司 | Orbit connection device and rail assembly |
| CN108951315B (en) * | 2017-06-14 | 2023-10-27 | 深圳市朗驰欣创科技股份有限公司 | Rail connecting device and rail assembly |
| CN107289895A (en) * | 2017-07-25 | 2017-10-24 | 爱佩仪中测（成都）精密仪器有限公司 | For the chalker to metal tube outer circumferential walls |
| CN111604345A (en) * | 2020-07-09 | 2020-09-01 | 谢丐养 | Reusable protective device and method for production and processing of combined type steel bars |
| CN113997009A (en) * | 2021-10-26 | 2022-02-01 | 宣城市雍基超镜面精密机械制造有限公司 | Forming method of light thin-wall aluminum guide roller |
| CN114310242A (en) * | 2021-12-23 | 2022-04-12 | 北京城建集团有限责任公司 | Thin-wall stainless steel pipe sealing installation equipment |
| CN114310242B (en) * | 2021-12-23 | 2023-01-24 | 北京城建集团有限责任公司 | Thin-wall stainless steel pipe sealing installation equipment |
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